It's a strap for holding water bottle cap attached to the bottle. To be printed out of flexible material.
Nalgene Narrow Cap and Strap Replacement by tracejm, Download free STL model
nalgene strap 3D Models to Print - yeggi
nalgene lid 3D Models to Print - yeggi
Narrow Mouth Nalgene Cap Tether by Inspector5, Download free STL model
nalgene cap 3D Models to Print - yeggi
nalgene strap 3D Models to Print - yeggi
Nalgene Cap strap with hole for carabiner by caver01, Download free STL model
Aquaflask cap repair set by Robert Schiele, Download free STL model
nalgene 3D Models to Print - yeggi
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Model available for download in Stereolithography format. Visit CGTrader and browse more than 1 million 3D models, including 3D print and real-time
010a - Replacement Nalgene Water Bottle Lid - | 3D Print Model
▷ fix nalgene strap 3d models 【 STLFinder 】
Free 3D file Nalgene Water Bottle Strap 🚰・3D printing idea to download ・Cults