Product Name : DC Solenoid Electromagnet Rated Voltage : DC 4.5V Type : Push Pull DC Solenoid Electromagnet mainly used in vending machines, transport equipment, office facility household appliance, mechanical, etc. When energized, doing work through pulling in plunger object. Force and Stroke: 40g/2mm Energized Rate: 25% Body Size: 20 x 12 x 11mm / 0.8 inch x 0.47 inch x 0.43 inch(L x W x T) Plunger Bar Size: 3 x 40mm / 0.12 inch x 1.6 inch(D x L) Cable Length: 10cm/3.9 inch Material: Metal, Electronic Parts Main Color: As Shown Weight: 48g Package Content: 4 x DC Solenoid Electromagnet Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.