Feature:1. Madeofsuperbchrome vanadium steelmaterial,itislong-lastingandendurable.2. Multifunctional piecesprovidesyouto mix and m-atchdiverse driver sizesofsockets, ratchet handles, extension bars, corded and cordless driversect.3. Easytohandleandoperate,compactdesignandlightweight,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/ 250gPacking list:1 Set * Impact Extension & Socket AdapterPackage List:1 Set * Impact Extension & Socket Adapter