Strauss Spider Shaker Bottle 500ml, (Green) and Adjustable Hand Grip Strengthener, (Black/Orange) Patented blender ball wire whisk mixes as you shake Perfect for protein shakes, smoothies, pancake batter and more Leak proof, storage container, pill container, water bottle plus shaker for preparation and saving time Durable construction & ergonomic design - the material of the hand grip strengthener is good-quality abs plastic Adjustable resistance - hand grip strengthener can be adjustable from 22 to 88 lbs (10 to 40 kg). it can satisfy different power levels, from the beginners to the advanced Useful in hand/ finger/ forearm/ wrist exercise - hand exerciser provides a great aid in hand/ finger/ forearm exercise. It is perfect for different occupational people with diverse aims