This Jang TD-1 Blank Seed Plate allows you to create your own seed plates to fit your needs. On the blank plates seed size and spacing can be adjusted by drilling our the proper hole size and adjusting the sprocket settings. Seed plate holes allow for individual seeds to pass through for accurate seed drop and spacing. Made from anti-abrasion plastic to prevent build-up of static electricity that causes seeds to stick together. This item is shipped directly from our supplier, please allow 7-10 business days for delivery.