Standard Duty I-Beam Double End Pulley webbing Plastic glide strips in housing

Plastic glide strips in housing reduce noise and friction

this Overhead Lift Block allows one or more lift lines to pass through before attaching to the load

Compatible with Series 500

This all black  adjustable floor block is designed to maintain proper sash cord tension and alignment on a rope operated track systems

Standard Duty I-Beam Double End Pulley webbing Plastic glide strips in housingThe IWEISS Double End Pulley, also known as a Live End pulley, contains two 4 diameter nylon sheaves with shielded ball bearings mounted in a zinced steel housing that clamps over I Beam track. This pulley is intended for use in a straight or curved track with 1 4 rope for bi part or one way draw. Shielded ball bearing Clamp attachment Zinced Black Formed Steel Dimensions 6w x 5 3 4h Weight 2 lbs