Uxcell Aquarium Fish Tank Suction Cup Glass Cover Plastic Clips, Black, 10-Pack You can easily divide your tank into several compartments with these divider holders. Use these divider holders for separations of different fish, Use with divider sheet thickness 5mm. You can easily divide your 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. Handy clips to divide a bigger fish tank into several compartment for breeding or separation. Suction Cup Diameter : 30mm / 1.2"; Clip Inner Size : 23 x 22mm / 0.9" x 0.87" (Max.W*Max.H); Total Size	: 35 x 32 x 30mm / 1.4" x 1.26" x 1.2" (L*W*H)