Image 1 of 1 Plantware Knife 6" $6.00 BPI Certified compostable knife. Available in sleeve of 100 or case of 1,000.In store pickup only. Add To Cart Added! BPI Certified compostable knife. Available in sleeve of 100 or case of 1,000.In store pickup only. You Might Also Like Quick View Compostable Fiber Bowls from $9.00 Quick View Plantware Fork 6" $6.00 Quick View 6" Compostable Plates from $6.00 Quick View Hot Cup Lids from $10.00 Quick View Wood Compostable Fork from $11.00