David's Garden Seeds Tomato Plant Grafting Clip Spring Loaded 1.5 x 4.0 mm SV9031A (Clear) 25 Clips These clips are preferred by plant breeders Reusable--will last for several years Use disease tolerant rootstock and graft on your favorite varieties Grafted tomatoes can improve production, overall crop health and vigor, reduce or eliminate the need for pesticide use, lengthen harvest duration.