PVC Coated 4mm Banana Plugs with Rustproof Insulating Banana Plug for Inverter Black: Amazon.com: Industrial & Scientific
MECCANIXITY PVC Transparent Hose Vinyl Tubing 2mm ID 4mm OD 2m Flexible Lightweight for Water Tube,Air Tube: Amazon.com: Industrial & Scientific
Jocon SF9000 PVC Flexible Vinyl Round End Caps Shelf Organizer Tip Caps Wire Thread Protector Cover (Inner Dia 4mm, Black) - - Amazon.com
Amazon.com: CHGCRAFT 15m Hollow Pipe Tubing Rubber Cord 4mm PVC Gray Tube Cord with White Plastic Spool for Necklace Bracelet DIY Jewelry Making
Amazon.com: 1500Pcs/lot Diameter 4mm PVC Round Shape Cup Sequins with Holes for Sewing Craft Decorations-DIY Loose Round Cup Sequins for Jewelry Craft Making-PVC Cup Sequins Paillettes Sewing Crafts
DERPIPE Pneumatic Hose 4mm OD 2.5mm ID Orange Polyurethane PU Tubing Air Compressor Pipe 10Meter (32.8ft) - - Amazon.com