Specification Brand : Tyenaza BulletPoint1 : PREMIUM MATERIAL: Stainless steel trolley roller wheels are made of excellent metal material, sturdy and long lasting, galvanized outer BulletPoint10 : Built Standard: Built with high standard and care to meet industry standards for quality control, ensuring reliable and consistent performance BulletPoint2 : HIGH STABILITY: The sealing ring between the M10 bolts head and the rubber can keep the bolts and rubber from being pushed and crushed under the action of lateral forces. Greatly improved trolley roller limit stability and reduce vibration BulletPoint3 : WIDE APPLICATION: Strut channel roller wheels is applicable to all channels with 1‑5/8in wide channels and all 1‑5/8in wide channels or higher strut channels to prevent hand trolley parts rushed out of the end of the cylinder channel BulletPoint4 : EASY INSTALLATION: The trolley wheel limiter is easy to use and install. Use M10 bolts to lock, only need to tighten the hex nut, lockable by strut channel, easy to install, convenient BulletPoint5 : STABLE OPERATING: The limit roller wheel has beautiful form, fluent design, solid rigidity, noiseless, manufactured with high accuracy technology, you can operate. Easy to operate, good coordination and no noise BulletPoint6 : Size L):29.9" X 18.9" X 11" (L X W X h) BulletPoint7 : Size m):26" X 16.1" X 9.4" (L X W X h) BulletPoint8 : Size s):21.7" X 14.2" X 8.7" (L X W X h) BulletPoint9 : Feature: Security Lock Color : Anthracite ExternallyAssignedProductIdentifier : 7689380464164 IncludedComponents : No ItemName : Tyenaza 2Pcs Stainless Steel Trolley Roller Wheels, Limit Assembly Positioning for 1‑5/8in Width Strut Channel Beam Supplies ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 8 centimeters ItemPackageDimensions_Width : 7 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : beam-trolleys Manufacturer : Tyenaza ModelName : Tyenaza3cxqn5wkoa ModelNumber : Tyenaza3cxqn5wkoa NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : Tyenaza3cxqn5wkoa ProductDescription :