Features:OOTDTY  Standard 2.54mm jumper caps for use on Hard Drives, Circuit Board, Computer Interface cards, etc.These are also for use with Arduino, RaspberryPI and propeller prototype boards.Specifications:Material: Plastic+MetalColor: BlackQuantity: 100 Pcs/1 SetNote:Please allow 0-1mm error due to manual measurement. pls make sure you do not mind before you bidDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!No Retail PackagePackage Contents:100 x Jumper Caps