Introductions: This is 7-Piece Sensor Socket Kit offered here. All of them are made of premium material with delicate workmanship, so they are durable and reliable to use. Features: 1. Designed for the removal and installation of oxygen sensors, oil pressure sending units and vacuum switches equipped with wires or vacuum tubes 2. Sockets made with chrome vanadium 3. 7pcs sensor and sending unit socket set Specifications: 1. Item Including: 1/2" Drive x 27mm (12 point) oil pressure sending unit socket. 1/2" Drive x 29mm (6 point) pressure/vacuum switch socket with slot. Oil pressure sending units on late 1980 and mid 1990 GM vehicles. Designed to be used with 1/2" drive tool. 1/2" Drive x 7/8"or 22mm (6 point) long oxygen sensor wrench socket with slot. 3/8" Drive x 7/8" or 22mm (6 point) vacuum switch socket with slot. 3/8" Drive x7/8" or 22mm (6 point) vacuum switch socket with slot. 3/8" Drive x 1-1/16" & 1"or 27mm (6 point) oil pressure sending unit socket. Special deep design fits oil switches up to 2-5/8". Can be used with a 3/8" drive ratchet or 1-1/8" wrench. 3/8" DR x 7/8"or 22mm (6 point) short oxygen sensor wrench socket with slot. 2. Color: Black 3. Dimensions: (9.45 x 7.87 x 2.76)" / (24 x 20 x 7) cm (L x W x H) 4. Weight: 4.85lb / 2.2kg Package Includes: 1 x 7PCS Sensor Socket Kit Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.