Leading two instead of one? This beta biothane coupler makes it easy. 12" from top of o-ring to bottom of snaps. 1/2" width. Shown here in black beta with stainless steel hardware.
Need a little bit more room to attach your leash/lead? An additional o-ring on top of a 2" beta strap can be added at no additional charge; just make a notation in the "Custom Measurement" section.