Set 2: 1 x Siphon Cleaner + 2 x Aquarium Glass ClipProduct Name: Aquarium Heater Clip; Use for: fish tank, fish tank. Color: black/blue, transparent material: plastic Suction cup diameter: 33mm / 1.3inch; Clip Inner Diameter: 25mm / 1 inch Overall Size: 42 x 36 x 36mm / 1.7 inch x 1.4 inch x 1.4 inch (L x W x H) Product Name: Siphon< /p > Cleaner overall size (L x D): 170 x 5.5 cm / 66.9 in x 2.2 in (L x W) Suction cup size: 9 x 4.5 cm / 3.5" x 1.8" (W x D) Also install the brackets on the aquarium and place the aquarium glass on them. With 2 suction cups, you can easily attach the glass clips. Great helper for changing water and cleaning gravel. The head is specially designed for cleaning gravel. You can dig it directly into gravel. Clean the gravel bed in mini reefs and aquatic plant aquariums with regular water changes. A small suction cup makes it easy to clean around and under rocks, wood and coral. Package Contents: 1 x Siphon Cleaner 2 x Aquarium Glass ClipOnly above package