It's important to think about heat application, and how comfortable you are with heat on or near your hair. In that case, Drasawee U tip hair may be your best choice. Hair Material: 100% human hair can be permed, straightened and washed Length: 15 Inch-28 Inch Weight: 70g（0.7g/strand） Hair Style: Body wavy Color: 23 colors can be choose Package: 100 strands U Nail tip hair extensions(Usually 2-3 pack can make a full head) Note: Only light color can be dyed into dark color.Dark color cannot be dyed lighter. HOW TO USE ? Step 1： Make a spit section horizontally, start about 2 inches from the bottom of your neck. Step 2： Insert Separator at root to protect your scalp from the heat, pull hair through hole of separator. Step 3： Place Pre-Bonded U-Tip Extension underneath your own hair. Close Fusion Wand for several seconds melting and smearing the glue around every Hair. Step 4： Once the glue has melted, roll the glue between your fingers till the glue becomes cylindrical securing the extension in place. Step 5： Repeat until you have achieved the desired result. Step 6： Done! Maintenance: 1. Be gentle with your hair extensions. Brushing extensions too roughly can cause damage to the hair or cause the hair to fall out. 2. Human hair extensions can be styled using any heat-styling tools in the same way as real hair. 3. If you are going to bed and can’t remove the extensions, a ponytail will prevent the hair from tangling and will increase the overall product lifespan. 4. There may be color difference between pictures and real hair extensions. If your hair extensions don’t match your hair, please contact customer service at the first time for exchange.