5 Pieces 6 Inches Long Natural Cholla Wood Aquarium Decor Fish Shrimp Pleco Cichlid Chinchilla Hermit Crabs By OMG Aquatics 100% Organic. Please boil before use. Each cholla wood is at least 6" in length and 0.5" - 1.5" in diameter. Great for tying mosses and buce onto. Provides natural cover for fry/newborn.