Cunguv Tree Spreaders Fruit Tree Limb Spreader 30 Pcs\. Apple, Blue And Black. Tree limb spreaders are made of durable plastic, reusable,black color is 4inch in length and green color is 5.1inch in length.An effective way to train a trees structure, ,all of the branches were growing nearly vertical. Branch and limb spreaders are easy to position and stay in place,do not come loose and fall out when in strong gusts of wind,not hurt tree branches. Limb spreaders for training limbs to make the entire tree stronger, less susceptible to wind, etc. damage,perfect for training young trees to produce more fruit in indoor and outdoor plants . Branch spreaders for fruit trees to spread the branches in an efficient way young trees and bushes for shaping undesirable branch angles. Great for spreading the limbs on my apple tree, great for training Japanese maples and small magnolias, for training pear trees and so on...