AMZGLORY Trolley Roller Wheels Silent Load Light Duty Limit Trolley Assembly Positioning for Unistrut Strut Channel with 1-5/8" Wide and All 1-5/8" or Taller Strut Channel, 6 Pcs - TWH0517-D-US-DQQ

• Suit Most Work Systems: Trolley Roller Limit for use with 1-5/8" Wide and All 1-5/8" or Taller Strut Channel, The stopper is used to restrict the movement of the trolley roller and keep the trolley assembly from detaching from the strut channel Easy to install: This hexagon nut only needs to be tightened, and it can be locked into place with the Strut Channel. Simple structure, easy installation Durable: the roller wheels are made of quality metal materials with a sturdy surface, rubber can effectively cushion and protect the trolley roller, so that you could use them for a long time Stable: the limit wheels are very smooth and noiseless in use, the welded positioning of the bearings also provides nice stability for safe use 2 Different Direction: the trolley assembly supports 2 directions of movement, so that the crane can work in different positions, the practical design will save energy and solve most problems, Manufacturer: AMZGLORY