Material:Lava Rock <br>Size 8mm; hole size is about 1.5mm　<br>Color:you choose　<br>Condition 100% Brand New<br>Quantity:15"Approx.50pcs<br>Conversion:1 mm = 0.0394 inch， 1 inch=25.4mm<br>Note:the picture shown is a representation of the item，youll receive