Specification Brand : BIAXJUNY BulletPoint1 : 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. BulletPoint2 : Trolley Assembly Limit uses high-quality large rubber, Metal parts are made of high -strength carbon steel, galvanized surface, sturdy and durable. BulletPoint3 : Trolley Roller Limit use transverse design of the buffer bolts can resist greater impact force. reduce vibration to protect the trolley assembly. BulletPoint4 : Strut trolley roller wheels limiter Using square neck bolt structure, only need to tighten the hexagon nut, can be locked with the Strut Channel, easy to install, convenient. BulletPoint5 : If you have any questions about this Trolley Roller Limit, please let us know. We will resolve it within 24 hours to ensure your satisfaction. Color : Silver IncludedComponents : Trolley Roller Wheels Limit ItemName : BIAXJUNY Heavy Duty Steel Trolley Roller Wheels Limit Trolley Assembly Positioning for Unistrut Strut Channel with 1-5/8" Wide and All 1-5/8" or Taller Strut Channel(Silver, 4pcs) ItemPackageDimensions_Height : 3.2 inches ItemPackageDimensions_Length : 3.6 inches ItemPackageDimensions_Width : 1.5 inches ItemTypeKeyword : beam-trolleys Manufacturer : BIAXJUNY Material : Galvanized Steel ModelName : Beam Trolleys ModelNumber : XWQ114 NumberOfBoxes : 1 NumberOfItems : 4 ProductDescription : Special Design:Trolley Roller Limit is used to Limit the trolley roller any position movement and Prevent the trolley assembly from detaching at the end of the Strut Channel. Good stability: Use high -quality rubber in the positioning part to buffer and protect the hand cart component. Can resist greater impact. Reduce vibration to protect the trolley assembly. Easy Operation: Using square neck bolt structure, only need to tighten the hexagon nut, can be locked with the Strut Channel, easy to install. Style: Unistrut Strut Channel Color: Silver Material: Zinc Plated Steel Package Contents:Trolley Roller Wheels Limit 4PC