Specification Brand : Hyuduo BulletPoint1 : [Easy Installation] Simply lock with m10 bolts, tighten the hex nut, and secure in place, compatible with strut channels BulletPoint2 : [ Design] Beautiful form, noiseless operation, wear-resistant, and high accuracy manufacturing for smooth and quiet usage BulletPoint3 : [Universal Fit] Designed for 1-5/8in wide strut channels, prevents hand trolley parts from sliding out BulletPoint4 : [Enhanced Stability] Sealing ring between m10 bolts and rubber prevents crushing, limits impact , and reduces vibrations BulletPoint5 : [Sturdy and ] Stainless steel trolley roller wheels ensure long-lasting performance, galvanized for ItemName : Stainless Steel Trolley Roller Wheels Limit Assembly Positioning with Sealing Ring for 1-5/8in Width Strut Channel Beam Supplies Easy Install Use M10 Bolts Lock ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 9 centimeters ItemPackageDimensions_Width : 8 centimeters ItemTypeKeyword : beam-trolleys Manufacturer : Hyuduo ModelName : Hyuduooizasubr8n ModelNumber : Hyuduooizasubr8n PartNumber : Hyuduooizasubr8n ProductDescription : 1. PREMIUM MATERIAL: Stainless steel trolley roller wheels are made of excellent metal material, sturdy and long lasting, galvanized surface, and erosion resistant 2. 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, while also limiting the roller wheel impact . Greatly improved trolley roller limit stability and reduce vibration 3. 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 4. 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 5. STABLE OPERATING: The limit roller wheel has beautiful form, fluent design, solid rigidity, noiseless and wear resistant, manufactured with high accuracy technology, you can operate. Easy to operate, good coordination and no noise