Baseline® Volumeter Set objectively measures volume of a body part by using fluid displacement to help determine degree of edema. Easy-to-read overflow cylinders accurately measure displaced water to document any changes in hand, arm, forearm, or leg swelling. Simply fill the appropriate volumeter with water, fully immerse the affected extremity, and measure the overflow in the graduated cylinder. Volumeters are made of extra-strong Lucite and have leak-proof joints. Each set includes volumeter, overflow cup, and measurement vessel. Available for the Foot, Leg (two sizes), Hand, Forearm, or Arm.Volumeter Cavity Sizes: Foot: 5"W x 13"L x 9"H • Partial Leg: 6"W x 13"L x 24"H • Large Partial Leg : 8"W x 13"L x 16"H • Hand: 3"W x 5"L x 9"H • Forearm: 6"W x 6"L x 24"H • Arm: 7"W x 7"L x 30"H