KrugerEDC designed brass teardrop. Specially made for paracord. Three different sizes and width for different thicknesses of paracord. For standard 550 paracord you should chose the large option with 4mm hole. You can use the 3mm hole also for a 4 mm paracord but it will be slightly tighter to use
Measurements below:
Large (3mm): 25 x 15 x 3 mm with 3 mm hole
Large (4mm): 23 x 15 x 4 mm with 4 mm hole
Small (3mm): 18 x 13 x 3 mm with 3 mm hole