2.Accurate Height Adjustment:Equipped with an HD scale, these sleeves provide more accurate height adjustment, eliminating any guesswork. 4.Lengthening Design:Available in different lengths and sizes, these sleeves enable the twisting height to be extended, eliminating the need to stand on high places or ladders and making work more convenient and . 3.Easy and Effortless Leveling:With seamless links and high concentricity, these sleeves make leveling a breeze, ensuring effortless operations. 1.Faster and More Efficient:These ceiling sleeves can be installed on electric drills to make the nuts faster and more efficiently, eliminating the need for manual twisting. 5.- and Sturdy:Made of high hardness chrome- steel with plating treatment on the interface, these sleeves are wear-, rust-proof, -proof and sturdy., Manufacturer: Akfldms