5.5 x 2.1 MM 5A DC Power Jack Socket Dc-099 30V Threaded Female Mount Connector Adapter with 5.9Ich 18Awg Cable(Pack of 10) 10pcs 5.5x2.1 workwarehouse easy to snip electrical tape

easy to snip electrical tape and soldering iron

The replacement disc tips is hide inside the pen cap

Because they have no moving parts

uxcell Plastic Inline Manifold Union Push to Connect Tube Fittings 6mm or 15/64" OD Push Lock 5pcs

5.5 x 2.1 MM 5A DC Power Jack Socket Dc-099 30V Threaded Female Mount Connector Adapter with 5.9Ich 18Awg Cable(Pack of 10) 10pcs 5.5x2.1 workwarehouse easy to snip electrical tape5. 5 x 2. 1 MM 5A DC Power Jack Socket Dc 099 30V Threaded Female Mount Connector Adapter with 5. 9Ich 18Awg Cable(Pack of 10) Specification: Materials : Copper Nickel plating Use temperature range: 30 70 centigrade Rated load: 30V DC 5A Insulation resistance: 100 M ohm Insertion force: 3N ~ 30N Insertion and the Extraction Force Electrical life: 6000 times Quantity: 5pcs Product Features Product Name: DC Power Jack Female Mount Hole Diameter : 10.