Features 1、Made of superb chrome vanadium steel material, it is long-lasting and endurable. 2、Multifunctional pieces provides you to mix and m-atch diverse driver sizes of sockets, ratchet handles, extension bars, corded and cordless drivers ect. 3、Easy to handle and operate, compact design and lightweight, portable. Specification Features: Made of superb chrome vanadium steel material, it is long-lasting and endurable. Multifunctional pieces provides you to mix and m-atch diverse driver sizes of sockets, ratchet handles, extension bars, corded and cordless drivers ect. Easy to handle and operate, compact design and lightweight, portable. Designed for Impact use and feature spring-loaded detent balls to securely l-atch sockets, better use performance. Nice l-ife assistance for DIY and car rapairing. Specifications: Material:chrome vanadium steel Type:Type1: 24pcs/ Type 2: 16pcs/ Type 3:8pcs/ Type 4: 7pcs (Optional) Package size: 120 * 90 * 30mm/ 4.7 * 3.5 * 1.1inches(Length * Width * Height) Package weight: 600g/ 340g/ 260g/ 250g Packing list: 1 Set * Impact Extension & Socket Adapter Package List 1 Set * Impact Extension & Socket Adapter