Made of plastic material, wear-resistant,, durable for long term use.easy to install in your aquarium fish tank.Sucker holder groove fit for 5mm Thickness Fish tank divider.Use these divider holders for separations of different fish, for breeding and to prevent your fish to fight as well.Handy clips to divide a bigger fish tank into several compartments for breeding or separation.Professional Divider Sucker Holder can divide fish tank into several compartments for fish breeding or separation.For separating different fish, breeding and prevent fish to fight as well.Fitment: Fit for 0.2inch \/ 5mm Thickness Aquarium DividerColour:White+blackMaterial:plasticSize:Length: 8cmwidth: 6cmPackage Contents:60 x Divider Sucker Holder(White)60 x Divider Sucker Holder(black)Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.