●Material:ABS plastic ●Size:1.53*1.14 inch thickness: about 0.05 inch ●Its thin, lightweight and flimsy. Only good for daily use, not suitable for extreme condition use ●Number 6, 9, 69, 96, 66 and 99 are underlined to distinguish the difference. If you are using them to draw prizes, its totally fine. ●These tags have no holes and no adhesive tape. ●If you want all numbers without underline, please go check the other listing from my store.