Large Amber Keratin Glue Sticks. These glue keratin sticks come in packs of 12 sticks, and are compatible for the large sized glue stick guns. They are manufactured from high-quality keratin resin. They are ideal for the applications and to adjust/application the nail-tips of the hair extensions. The strong keratin formation will lead to the creation of the durable, long lasting and hard bond. You can remove them with help of pliers and acetone solution. Dimensions: 29.5cm length / 12mm diameter. Available in Amber, Black or Brown - Recommended for trained professionals only.