Spinning Mushroom Great fun, more popular adventure trail additions. Spinning Mushrooms & Discs are supplied as a complete assembly, ready for installation. Each Spinning Mushroom is 470mm (H) and 450mm (D). Spinning Mushrooms are available in coloured EPDM rubber, red, green, yellow, and blue. Each Spinning Disc is 185mm - 187mm (H) and 370mm (D). Spinning Discs are supplied in black SBR rubber. Delivered fully assembled. For self installation. Delivery charges apply.