Features:1) Can be called reflective armband, or reflective slap wrap, reflective bracelet, magic ruler, slap armband ruler, fluorescent armband2) Used when walking, jogging, an cycling3) Functions: a) Hold the reflective surface upward and hold tightly one end of the reflective band b) Tap the wrist / ankle gently to let it wind around c) To straighten unwind the strap and stretch it until it makes a sound like a "crack"4) Warning: a) Do not place close to fire b) Store in a safe place out of the reach of children c) Do not use it if the outer plastic peels off and the inner steel is exposed d) Do not put into mouth or use it to poke anyone e) Do not scrape off the reflective surface5) The nice reflective items for safety or promotion6) Easy to use7) Put your logo on it8) Width: 3cm (normal)9) Length: 30cm, 32cm, 35cm, 38cm producing area:China