These are "horns" to attach to a helmet. [White] #Horns & Takepter List narupon ★ Easy to attach to your helmet with the included double-sided tape and suction cups. ★ OK for motorcycle full-face & half helmets! ★ Elementary school kids will point at you (lol) ★ Also for bicycle helmets ★ Diameter 29mm, Height 30mm ＜Set Contents＞ ・Horns x 2 ・Double-sided tape x 2 ・Suction cups x 2 Small parts, but they stand out subtly!! ★ 2 sets → 100 yen off ★ 3 sets → 200 yen off ★ 4 sets → 300 yen off I will change the price, so please comment with the type and quantity before purchasing♪ ↓ Please see other colors. #Horns & Takepter List narupon 24-hour instant purchase OK, no comment needed. Please note that we do not offer discounts. Compatible car manufacturers...Universal