Revamp an old T-shirt with these Siser heat transfer vinyl. You can cut this pack of silver-colored vinyl into various shapes and sizes to embellish uniforms, sports garments or pet clothes.Details: Silver colored 11.8" x 24" (29.97cm x 60.96cm)8 rolls 140 microns Reflective finish Pressure-sensitive backing Iron-on PET composition CPSIA certified Applies to 100% cotton, poly/cotton blends, 100% polyester and nylon (testing recommended)Usage and care:For use with 45 degree or 60 degree blades (sold separately)For use with Siser Weeder, Multipurpose Paper, Kraft Paper or Heat Transfer Cover Sheet (sold separately)Wait 24 hours before 1st washMachine wash warm or cold / mild detergentCan be machine dried on low but hanging item to dry will preserve reflective qualityDo not dry clean