[Size]The dimensions of the shrimp breeding shed are approximately 11.8 cm (length) x 6 cm (width) x 2.5 cm (height). Shrimp hideouts can be added to almost any aquarium you have . The handmade pet accessory has a large feeding cave that can accommodate more ghost and provide them with a comfortable living environment. [HIGH QUALITY MATERIAL] The shrimp aquarium tunnel is made of high quality plastic material, which is and long-lasting, ensuring you enjoy the shrimp tunnel for many years. Wide scope of application: Aquarium caves can be used in aquariums, shrimp tanks, fish ponds, shrimp ponds, breeding ponds and other places to provide a good breeding environment for . Easy to install: Just dig out a small area on the side of your aquarium and place it inside. Material: plastic colour: black Package Contents: 1 set x shrimp caves (pack of 2) Only the above package content, other products are not included. Note: Light reflection 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.