Preassembled Spikes Without assembling boring pain :the rolling spike aerator is preasembled Spikes with Quick Clip, Stable U-Shape Construction, Assembly Only Needs few Minutes. Adjustable height and easy to install: the handle consists of four parts and can be adjusted to the desired height according to your needs, the longest size is 75 inches. There is no need to bend. The 4-section handle is quickly connected by free pressure clips. The soft rubber handle is non-slip and comfortable, ensuring you don't feel uncomfortable during long working hours. Zero loosening guarantee: the tip screw are fastened with washers and counterlock by air tools, to guarantee permanent stability of the tips, even in extreme soil conditions. No wavering, no squeezing back. Carburized Spikes,More Superior Strength: the 45 2-inch reinforced tip screws have a carburization heat treatment, improving their hardness and strength, which makes them resistant to deformation. Stronger fork and thicker tube: the fork is made of strong round steel tube, supports a higher load capacity than the fading plates to push the drum effortlessly. The handle is made of the largest and thickest high quality steel tube, ensuring durability and long lasting use. Extra weight can be added in need:the roller can be filled with sand or stones to add additional weight, allowing the tips to penetrate deeper into the ground for better aeration. Use Tips:Efficiency is best for wet soil. watering well if it is hard and dry land or use the day after raining. Sancat rolling lawn aerator can effectively resolve soil compaction issues and promote the growth of lawn roots. Our manual lawn aerator will penetrate and loosen the soil. This will help to decompose thatch and improve the flow of air, water, and nutrients to your lawn roots. it bring you a beautiful and healthy lawn.