Specifications:

Elastomer material: imported polyurethane
Sleeve material: high strength aluminum alloy

Nominal torque: 10 (N.m)
Allowable speed: 10 (r/m)
Allowable torque: 8 (N.M)
Length: 25mm / 0.98in
Outer diameter: 20 mm / 0.79in
Weight: 21g

Type: 5 x 8mm / 0.20 x 0.31in