844Pcs Pins-Gears-Axles Set Compatible with mainbrands-Technical-Parts, Latest differentials Chain Link Connector Joints Tank Track Car-Wheels-Tires Shock-Absorber Steering Shaft

This is exactly what my nephew wanted. He loves to build his own designs and this set right here allowed him to add the parts he need to make a remote control Lego car

Bought these for my kid and they are holding up like a champ. It has provided hours of fun and engineering for my child. And they fit well with main brand Technic bricks.

Great addition to Lego sets if you are building from scratch endless possibilities . Most parts fit well. You might have to take a few plastic edges of for better fit but easy to use.

Great product

Great set of drivetrain bits

Works great with LEGO and has lots of great parts. Kids love it!

Great variety and gratifyingly solid quality. 4-year-old dived into this tray and played for over 2.5 hours straight of unsupervised delight. Even given the 3 different styles of chain/tread-like constructs of which there are probably over 100 pieces (I didn't count as I did help assemble the small one) , this is a great value and variety of parts. Kid dove right in to Technics building for the first time -- I didn't expect that having noticed this kit on a sale and acquiring it as just casual add for future teaching. (I own 5 EV3 kits for teaching home schoolers)

These integrated great with tecnique legos!! So many creative build options!!