EDM 3 Acetone Chemistry Reagent, 16 ounce Bottle, 1 Each Bed Trays 5 * Provides immobilization for Nerve Sensory Evaluator Access 5 * Provides immobilization for thumb and or wrist * Conforming semi rigid thumb spica with malleable stay * Foam lined for comfortable protection yet keeps pressure off medial nerve * D Ring adjustable hook loop closure s easy height adjustment * Includes Standard Handgrips * Weight capacity 333 lbs * Directional Casters align the rear casters to track in a straight line to assist the user in controlling the direction of the EVA Walker * Step ON for directional tracking Step OFF unlocks the directional tracking * NOTE: Caster locks are only on the front casters on models with Directional Casters Acetone is also the active ingredient in nail polish remover 100% acetone is a useful addition to your pathology lab