Universal Joint Boot, For Use With D, NB, & DD Type Universal Joints, Includes Two Tie Wraps, Material Neoprene, Overall Length 2.44 in, Inside Diameter 2 in, Outside Diameter 2 5/8 in, Number of Bellows Triple, Boot Type Lower, Color Black, Maximum Operating Temperature 212 Degrees F, Maximum Speed 1,750 RPM, Minimum Operating Temperature -30 Degrees F, Coupling Size D-12, Package Quantity 2