210mm for adult. We can also do 230mm and 250mm as extra large. 1/4 inch width is good for an ankle bracelet. Same as wirstband, the logo or slogan on ankle bracelet can be printed, colorfilled, embossed printed, debossed or embossed also. We make all the bracelet matching the pantone colors. The bracelet can be solid, segment, swirl, glowing and UV transfer. We can add glitter into the bracelet, it gain the effect of little stars. We color the logo with the silicoe ink which is eco friendly as well. Usually you can choose the logo style for normal easy design. If the logo is hard, we will advise the custom wristbandsbest one. Like if the outline is less than 0.3mm thickness, we can only use printed style. As the colorfilled, embossed printed, debossed and embossed require at least 0.3mm. h. Since we make it high quality silicone which is soft to wear, kids will love our it much. The product of figured shape, glowing and UV transfer and anti-mosquito is very popular. We can make it figured shape for the logo, like a watch, heart or basketball which has larger size on the wristband, so it will be outstanding and clearer. A glowing wristband glows in the dark with green or blue magicly. The glow last for a bout 3h and it needs to absorb light enery from sun or lamp light before glowing. The kids must like it and be bursting with cucustom wristbandsriosity. It is good for night event. UV wristband will tranfer its color from transparent to blue or purple. It indicates the strength of UV index. The color will be darker if sunshine stronger. It is good for outdoor ativities like football, basketball and camping. We add some herbaceous oil into the silicone, then it become an anti-mosquito wristband. It can help avoid the attack of mosquito outdoor.