YC provided 7mm high temp. and low temp. colored glue sticks which is perfect for DIY crafts and heat sensitive materials. Costumer can enjoy their decorating projects with multi-colored glue sticks. These glue sticks are suitable for YC mini glue guns. For best performance, allow the hot melt adhesive gun to warm up to operating temperature. YC’s hot glue guns and glue sticks are ideal for gluing jobs.