The IN-MOTION Tip fits all of our IN-MOTION Spring Assist Products - product numbers MWD6000, MWD6500, MWD5600, MWD7000, & MWD7500. (2 styles) Articulating crutch tips are made of a high quality stryo butane rubber composite which contributes to the long life of the tip. This specially designed tip gives greater stability because the foot of tip remains in more contact with the ground's surface at all angles. This eliminates dangerous sheer forces, the lack of traction, and uneven wear typical with the standard style crutch tip. These tips are Latex free. Standard Style crutch tips are made of a durable rubber composite which contributes to a lengthened life of the tip. The Standard Style tips are an inexpensive replacement option for short term use. These tips are Latex free.