Easy to Use:- simply insert the glue stick into the hole at the back of the glue gun,slide it in until it stops by pull the trigger. Turn on the power, preheating the hot glue gun for about 1-3 minutes to soften the glue stick. Once it s been sufficiently melted, pull the trigger, the glue will ooze out. Suitable For - 7mm Glue Sticks, bonding the toy model, artificial flowers, Christmas trees, ornaments, metal products, wood products, cardboard, electronic circuit boards.