Slider Strap 1 Inch | Pew/Brushed Silver 814156019096 – HAMMITT
Trimming Shop 25mm Triglide Slider Buckle Metal Adjustable Durable Lightweight Slide Buckle for Webbing Straps, Backpack, Fasteners Strap, Pet Collars and Bag Accessories, Gold, 10pcs : Amazon.co.uk: Home & Kitchen
Emmaline 3/4" 18mm Adjustable Strap Sliders - Pack of 2
How To: Make an Adjustable & Removable Strap with a Slide Buckle and Swivel - YouTube