1. Finger length: approx. 8cm/ 3.14 inches,Finger perimeter: 6cm/ 2.36 inches.Package Including: 1*practice finger. 2. The nails tips can be inserted into the nail bed without glue about 10 mm, it's stable and more suitable for the thickened nail bed.If you want your nails to not fall off at all, you need to use acrylic glue to stick your nails on the nail bed. 3. Suitable for beginners or skilled workers,personal use and salon use, It's can be used for tattoo practice, manicure practice, jewelry, ring and others shop retail display, as well as home organized. It can also be used as stage finger props, Halloween decors, fancy tattoo shop decoration, interesting photo shoot, etc. 4. It is the simulation of human fingers from the size, texture, skin tone or feeling. You can see the lines and joints clearly on the finger. Put it on any table and make you feel like you are working with a real client, good for practicing. The finger has built-in bones that can be bent at various angles as needed, it is soft and touches like jelly. 5. The fake fingers is made of high quality liquid silicone, which is durable and enviromantal, no bad smell and non-toxic, safe for your use. It can be re-use for acrylic, gel. Our finger model can be soaked in the acetone, and they can also be used in the nail lamp. It can be used repeatedly after easy wash it in water, which is very suitable for manicure practice.Perfect and useful gift for your mom, girlfriends, female friends, etc.Manufacturer: xmasir Part Number: HHY1025-Silicone Practice Fingers-UKThe right size nails tips can be inserted into the nail bed without glue and will not fall off or turn up.but if your nails tips are not so suitable , you need to use acrylic glue to stick your nails on the nail bed. How to use acrylic glue to stick nails? 1.Apply acrylic glue to the nails 2.Insert the nails into the nail bed How to use acetone to remove nails? 1. Completely soaked the finger with the nail part in acetone. 2.After soaking for a period of time, the nail will easily fall off. 3.Wipe gently with a damp paper towel, and the nail bed will look like a new one without any damage.This can achieve the purpose of reuse. Note: Please use acrylic glue to stick your nails!!! If your nails still fail to stick to the nail bed after using glue, it means you have used the wrong glue. Please buy acrylic glue!!! Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement. Do not use hard scrub brush to clean it. Do not put it on hard edge and corners for long time. Do not press it heavily. Do not touch the ink dyes or sharp objects. Do not bake, keep away from fire.