Features: New bio balls with larger bacteria cultivation area. 1516mm Size, 100pcs Bio Balloons included. Increase dissolved oxygen levels and improve biological filtration. Ideal for aquarium, fish tanks, koi ponds, waste water systems etc. Specifications: Blue color Material: PVC Quantity: 100pcs Size: 15 * 16mm / 0.59 * 0.63in Weight: 1g (1pc) Package size: approx. 17123cm Package weight: 114g Package list: 100 bio balls
