The Plantpak by Crest Seed Tray Inserts are premium quality and are used by professional growers. They are designed for use with seed trays and are ideal for the even distribution of seeds. The inserts allow easy plant removal and have raised drainage channels. They are made from 100% recycled and recyclable material.Dimensions: 35.5 x 22 x 6.6cm.Number of cells: 15.Quantity: 22 x Packs of 5.