Reviews Used Engineering Machines

SmartLab Toys TINY Robots with 15 Ingenious Motorized Builds Big Science Tiny Tools.

Tiny robots, big science fun: Mini robotics kit with everything kids need to design and build miniature working machines from an assortment of real....
Hands-on STEAM learning: Exciting intro to mini machines and robotics.
experiment with gears, axles, movement, and balance.
15 suggested builds, endless possibilities: While a child’s imagination is the only limit, an enormous foldout engineering manual gives instructions....
26 pieces + batteries included: 3-piece chassis, 2-piece head, 5 gears, 3 axles, 5 wheels, 2 arms with grippers, 2 elbows, 2 legs, center roller,....

Size: 1-1/8"x1-3/8"x1"(Bore Diameter x Outside Diameter x Thickness).
The needle roller bearing has a compact radial structure and a small outer diameter, which is especially suitable for supporting structures with restricted radial installation dimensions.
The rollers for heat tolerance and durability under heavy loads.
cage guides and evenly spaced rollers for reduced friction, vibration, and noise.
Needle roller bearings are widely used in power tools, textile machinery, agricultural machinery, industrial sewing machines, and engineering machinery.

Three line design, high precision measurement instrument tool. Magnetic small bubble levels 52x20x15mm three line high precision square spirit level measuring tools for leveling trailer, rv, machine, picture hanging etc..
Magnetism on the backing, Magnetic function. Magnetic bubble level with magnet on the bottom can absorbed onto the iron- or steel-surface for leveling measuring..
52mm square bubble level used to level measurements in building, landscaping, fencing, surveying, building trades, engineering..
Square Bubble Level 52mmx20mmx15mm spirit level three line high precision degree mark surface level bubble for measuring instrument..
The square level can be used to level any surface, ideal for leveling metalworking, equipment, appliances, washing machines, home furnishing etc..

Build 8 physics-driven kinetic creatures using LEGO Technic bricks and papercraft..
STEM content about axles, cams, cranks, engineering in everyday machines is included in the 64-page book, alongside the step-by-step instructions..

Build 8 physics-driven kinetic creatures using LEGO Technic bricks and papercraft..
STEM content about axles, cams, cranks, engineering in everyday machines is included in the 64-page book, alongside the step-by-step instructions..

Build 8 physics-driven kinetic creatures using LEGO Technic bricks and papercraft..
STEM content about axles, cams, cranks, engineering in everyday machines is included in the 64-page book, alongside the step-by-step instructions..

The jumper clip is made of pure copper with good conductivity, with an insulated handle, which is easy to use..
This is ideal for applications running on battery chargers (solar panels, electric fences, etc.) or car batteries (camping, boats, electric fences,....
Powerful alligator clip connectors are widely used in various electrical engineering, electric welding machines, voltage testers, and are suitable for....
Pack of 2 fits 100-500A Powerful car battery charger clip connector (1 red + 1 black).

✔BUILD REAL WORKING MACHINES: 10 unique build kits allow kids to explore the excitement of engineering by creating working machines that they see in....
✔DISCOVER ELECTRICITY: Use the 7 different electronic experiments to understand circuitry. These kits are designed to educate about electricity in a....
✔239 PIECES FOR TOTAL CUSTOMIZATION: 17 robot blueprints are included, but children are free to create their own original robots from their....
✔ EDUCATIONAL AND ENGAGING STEM TOY: Enrich your child’s mind with the interactive challenges of building their own robots! The detailed....
✔PERFECT GIFT FOR DEVELOPING MINDS: Boys and girls ages 8 and up will love engaging their minds and building a robot from scratch. The blueprints....

WHITE BUTT VACUUM CUPS: Capacity is 210 ml.
Diameter is 9.4 inch.With the curved design,fit your butt comfortably..
PREMIUM MATERIAL:Our butt vacuum cups are made of PC engineering plastics,good toughness,high transparency and strong impact resistance,sturdy and durable..
COMPATIBLE:This pair of butt vacuum cups come with a Y-shaped hose,the length is 85 inch and the inner diameter of the vacuum tube opening is 0.2 inch,which can be used with many kind of Vacuum Cupping Machines..
PREFECT FOR BUTT LIFT:The suction pressure provided by vacuum cupping therapy set can move fat cells from other areas of the body into the butt tissue, which is used to improve buttock size and body shape quickly..
EFFECTIVE FOR ALL AGES: Shaping body through vacuum cupping cups is very effective for women of all ages, especially for women who are 25-45 years old..

Product advantages: 304 stainless steel hook screw, durable, high hardness, rust-proof rust. Exquisitely made of super-large machines, after many experiments proved that in the outdoors will not be oxidized, rust, 1.3 times greater than the ordinary steel pull..
It is forbidden to rub between the bolts and it is easy to damage the threads..
Application: Widely used in a variety of engineering lifting machinery, metallurgical and mining equipment, port railway handling, forestry machinery, electrical equipment, aviation and sea, land transport, factories and mines enterprises lifting, traction and other industries..
Commitment: Our products are of excellent quality and dare to promise any quality problems. We provide 100% no reason refund service. Email 24-hour customer service.