B&L Engineering Mechanical Pinch Gauges Brand_Unico Part Number Compression Area Length Brand_CardioChek Plus Part Number Compression Area Length Thigh Circumference Hand Circumference Shoulder Circumference #5101L50 Half Leg 20" (50 cm) 24" (61 cm) #5101L66 Full Leg 26" (66 cm) 25" (64 cm) #5101L71 Full Leg 28" (71 cm) 26" (66 cm) #5101L76 Full Leg 30" (76 cm) 28" (72 cm) #5101L84 Full Leg 33" (84 cm) 28" (72 cm) #5101L92 Full Leg 36" (92 cm) 28" (72 cm) #5101A51 Half Arm 20" (51 cm) 17" (44 cm) 22" (56 cm) #5101A68 Full Arm 68" (68 cm) 17" (44 cm) 24" (62 cm) #5101A78 Full Arm 31" (78 cm) 17" (44 cm) 24" (62 cm) Literature 135" (343 cm) Length Contains BPA Contains DEHP Contains PVC 15 Tip and Palmar) measurement Known as the "Gold Standard" in pinch strength (Key