VG-SS316-R-20 Round Rail Guide: 0.67"W X 0.67"H X 240"L White UHMW-PE (20ft Per Pack) 8.40" OD They are spring set and

They are spring set and electro-magnetically released

Pearl’s Ceramic Bonded Technology™ (CBT™) grain is a non-fused ceramic aluminum oxide that is extremely strong and durable

thus greatly increasing the speed of installation

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And don’t forget Boston Gear’s Guaranteed Same Day Shipment program – revolutionary premium free guaranteed same day shipment for in-stock items

VG-SS316-R-20 Round Rail Guide: 0.67"W X 0.67"H X 240"L White UHMW-PE (20ft Per Pack) 8.40" OD They are spring set andFeatures Ram extruded UHMW PE. Ultra high molecular weight material can be used in a variety of applications. Low friction characteristics of UHMW allow chains belts and containers to move at high speed with minimum drag and noise as well as minimum container damage. Low friction High wear resistance FDA and USDA complaint material. 316 stainless steel sheath. Links Catalog Page