By removing the irritant, the body stops producing the reaction that is causing you to itch & swell. This bee sting kit can removes insect venom, saliva, and other irritants left under the skin using suction. Works on: Mosquitoes, bees, wasps, spider, centipede, biting flies, no-see-ums, chiggers, sea lice & more Easy to use one-hand finish independently. With you pulling the bar, the irritants is taken away. Strong suction: Effective suction on a variety of sting or bite sizes. Kit includes 1 x cylinder and 3 cups4 sizes). No chemicals, kid-friendly, reusable. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!