Eliminates: the need to use dangerous scalpel blades or knives associated with less effective bite sets. Effective Suction: 2 cup sizes to use, and effective suction on different sizes of sting or bite, the pump is easy to use with 1 hand. Extractor: most effectively extracts venom from limbs and areas of the body outside of muscle areas, effectiveness varies depending on the location of the bite. Small Compact: Reusable vacuum pump helps remove poisons under the skin in 1 quick motion, used for snake bites, bee/wasp stings, mosquito bites. Size: Suction Cup Size 1: (Diameter x H) 26 x 23mm / 1.02 x 0.91 in; Suction Cup Size 2: (Diameter x H) 21 x 23 mm / 0.83 x 0.91 in; Storage Box Size: (LxWxH) 105 x 93 x 30mm / 4.13 x 3.66 x 1.18 in; Extractor Pump Size: (LxWxDia). 125 x 58 x 26 mm/4.92 x 2.28 x 1.02 in; Disposable Small Tourniquet Size: (LxW) 480x25mm/18.90x0.98 inchFirst Aid Method for Snakebite: Avoid mouth burning to avoid the wound in the rescuer's mouth and cause poison or infection to the patient's wound. Do not use rubber, tourniquet or other substances to block arteriovenous blood flow, which can cause swelling and necrosis of the extremities. Do not cut the wound: it is often injected into the deep tissue and quickly absorbed, so open the wound, do not release poison, cause infection or cut in the wrong way will cause wound healing and unfavorable. Do not use an ice pack or electric shock