Features: Easy to install in your aquarium fish tank Suction cup based aquarium divider holders You can easily divide your fish tank into several compartments with these divider holders Use these divider holders for separations of different fish, for breeding and to prevent your fish to fight as well Dimension: Suction Cup Dia : 1.2” Material: Plastic and Rubber Fit Glass Thickness: 0.2” Size: 3.15" x 2.36" (LXW) Package includes: 12 PCS Suction Cup Divider Holder