Fangrui Product Details Drip Feed Oilers Are Single Point Lubricators That Are Mounted Directly On Lubrication Points. It Disperse By Gravity From Parent Reservoirs Through A Needle Valve. The Needle Valve Is Joined With A Toggle Pin So The Operator Can Switch Flow Of Oil Off/on Manually. This Type Of Oiler Is Especially Adopted Where Regulation Of The Oil Feed Is Required. Drip Feed Oilers Are Recommended Where Supply Of Oil Under Visible Control Is Required. Product Name: Drip Feed Oiler Capacity: 50cm/ 50ml Material: Acrylic Glass, Aluminum Thread Diameter: 14mm Body Size: 44 X 45mm / 1.7 X 1.8 (d * H) Total Height: 113mm / 4.5 Color: Clear, Silver Tone Weight: 107g Package Contents: 1 X Drip Feed Oiler 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.