The Liquid Chrome practice finger is a excellent way to gain experience as a beginner and as a seasoned professional. it is very realistic at 8cm in length and the tip can be easily changed. The silicone can be washed with mild soap and water to keep it looking realistic *take care to not over extend the wire, as it may break. Hands may have individual flaws and can be injured the same as skin. Please take care while using a file.