Whole Cockle Shell Mulch from the Shellfish Industry. Cockle Shells generally appear cream with light brown stripes which fade over time. Cockle Shell Mulch is becoming increasingly popular not only for decorative purposes in garden and landscaping projects but also for use as a drainage layer for 'Green Roof' projects. Up until now Cockle Shells were discarded as waste but recent television programs have highlighted the benefits of using Cockle Shell Mulch as an aggregate. Cockle Shells are also an important component of water biofiltration systems with various water treatment works and waste processing plants opting for Cockle Shells as a filtration media.  Features: Footpaths, golf courses, mulching, green roofs, hard landscaping, water biofiltration systems, 1 x 350kg Bulk Bag will cover approx 16sqm at 50mm depth  Delivery within 5 working days Specifications: Dimensions: H:1.0 x W:1.0 x D:1.0 cm Colour: Multi Model Number: 1919