Heat Shrink Tapered Conveyor Roller Cover For Use With Roller Dia 2-1/2 In. Length 60 In.I.D. Before Shrinking 2.6 In. I.D. After Shrinking 1.25 In. Shrink Ratio 2 1 Wall Thickness After Shrinking .050 In. PVC Material Temp Range -4 To 221 F Dielectric Strength 1000 V/mil White Color Resists Many Chemicals Oils Grease Acids Chlorinated Cleansers Salt Salt Water Moisture and Fungus USFDA 21CFR RoHS Standards