This robot arm is operated by water pressure generated by applying force to the water in the cylinder. Hydraulic power. Elekit Hydrostatic robotic arm. The gripper at the end of the arm can be used to "grab" and "release" objects.
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Apitor Robot R 4-in-1 Robot Building Kit APP Remote Control STEM Coding Toys Educational Gifts for Boys Girls Kids Ages 6-12
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Not sure is complete or for parts.
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2026 new handmade DIY robot creative robot set model building blocks is a collectible gift children's holiday toy
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The assembly process is straightforward, involving the fitting of wooden parts and the installation of a hydraulic system. This hands-on activity not only enhances problem-solving skills but also introduces children to the fascinating world of STEM.The hydraulic robotic arm kit is designed to be both educational and fun.
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1508PCS Transformation Robot Car 2 IN 1 Converts Autobots Truck 10302 build Blocks Set Technical Action Figure Model Robot Gifts
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MARBLES D.I.WISE. HYDRAULIC ROBOTIC ARM.
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82PCS/Set Plastic Gear Package Kit DIY Gear Assortment Accessories Set for Toy Car Robot Motor Various Gears Axle Belt Bushings
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4M Hydraulic Robot Arm Kids Science Kit, Model:4106 Brand New In Box Sealed
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82Pcs Gear Package Kits Various Gear Axle Belt Bushings Pulley Belt Worm Kits Shaft Belt DIY Set Toy for Robot Motor Toy Car
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4m hydraulic robot arm kids science kit (New Sealed)
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13-in-1 Solar Robot Kits DIY Assembling Science Experiment Kits STEM Educational Toys for Kids Age 8+ Solar Powered Robotic Set
Aliexpress UK
Hydraulic Robotic Arm Kit. Condition is New. Shipped with USPS Priority Mail. SKU 10
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Mark4 V2 Mark 4 8inch 367mm 9inch 387mm with 6mm Arm / 10inch 427mm w/ 7.5mm Arm FPV Racing Drone Quadcopter Freestyle Frame Kit
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Hydraulic Robotic Arm D.I. Wise Collection Engineering Science Ages 8+. Condition is New. Shipped with USPS Priority Mail.
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SmallRig Desktop Magic Arm with Crab-Shaped Clamp Kit Two-Section Adjustable Magic Arm 55cm 5624
Aliexpress UK