Free sip n spray water bottle Resistance tube exerciser Workout Set Revolex Extreme. Flexible sliding wheels on the sides with sponge coated handles for better grip and comfort. Develops your chest, back, arms, shoulders and abs in one movement. Easy to workout in Office, Park, Home, Outdoor. The Revolex ABS Exerciser is ideal for abs, chest, back, arms, shoulders, thighs and glutes.