Features: The package contains 6 pairs of contact points and conductive rubber caps, sufficient amount can satisfy the using and replacement needs. The contact points are made of copper, quality material allowing them to be applied for a long time. Specifications: Material: The contact points: copper The conductive rubber caps: pvc Color: as the pictures show Size: Short contact points: 0.25 inch Long contact points: 0.375 inch Short conductive rubber caps: 6 x 10 mm Long conductive rubber caps: 6 x 14 mm Package includes: 4 x Short contact points 2 x Long contact points 4 x Short conductive rubber caps 2 x Long conductive rubber caps Notes: When using, please keep the rubber cap close to the contact point until there is no gap between them to avoid falling. Manual measurement, please allow slight errors on size. The color may exist slight difference due to different screen displays.