Trim-A-Slab Expansion Joint Repair Material - 3/4" x 50 Linear feet (15.2m),Cement Grey EXPANSION JOINT REPAIR - Trim-A-Slab is the easiest to install replacement for concrete expansion joints. REMOVABLE - Removable, replaceable, so extension cords/wires can be easily run across the driveway/sidewalk. EASY TO INSTALL - Presses in by hand, convenient length for sidewalks (4 ft). FLEXIBLE - Made of flexible PVC with UV inhibitors. Each size will anchor itself in gaps +/- 1/8" from the nominal size. NO MESS - Installs rain or shine, hot or cold; no glues, no mess. no skill required to install.