Hydraulic transmission is a transmission mode which uses pressurized liquid in closed system to transfer motion and power. It converts the mechanical energy into the pressure energy of the liquid, and then the pressure energy of the liquid into the mechanical energy.
We process orders on weekdays (except holidays). Orders will be acknowledged within 2 working days of receipt and shipped within 3 working days of receipt.
Our average shipping times:
2-5 Business Days to the USA after fulfillment
8-14 Business Days to countries outside the USA after fulfillment
Reviewed by 9 users
Good product and service, thank you.
Excellent value for money
Everything works fine! Thank you so much!
wonderful!!! great educational toy. highly recommended
Excellent designer, the son is delighted, only the tube is better to replace with silicone.
Everything is super, thank you