Plant Propagation Pins (Strawberry pins)Great for propagating vining plants, cuttings and affixing nodes to CLIMB support poles Plant propagation pins are made of strong, durable plastic and will hold your plant in place as it roots into the pot. Simply push the pin into the medium right at the node or along the stem, and the pins will support the plant cutting as it grows new roots Features: Durable Reusable Waterproof Easy to use Material: Plastic Dimensions: Length: 2. 5 inches Width: 0.