High Quality Silicone - This hairline shaping tool is made using only 100% Skin Safe high quality Silicone and elastic that offers just the right balance of Durability and Flexibility for long-term use with any clipper or shaver.The round of this haircut band is about 21.5 inch, fits for most of people.The stretch silicone band can keep the band from slippery and dropping. Non-Slip & Adjustable - We made our hair trimmer template using only grade-A silicone thats non-slip and stays securely in place. It adheres tightly to the so you can easily use it on high and low necklines to get a clean edge with no need for a mirror, save your time and money, just clean up your neck line alone in under 1 minute. Neckline Shaving Works Perfectly Our neck shaving stencil helps you keep your men's haircut fresh with the removal of messy neck hair. This neckline template helps achieve a close, even shave or taper trim around the back of your neck helps to reduce slippage during use, on most adult heads. Hand-Free DIY Convenience - The hair line up tool stays securely in place so you dont need extra hands to hold it up. Makes trimming your neckline easier and faster. The hair trimming guide can be used as a neckline template to create a curved neckline. Portable and Easy To Clean - Our neck hairline template is durable, lightweight, and can easily fit in your bathroom drawer or toiletry kit. It makes refreshing your haircut a breeze whether at home or on the go, vacationing, business trips, and more.