Resistance varies by type: fabric/booty bands typically span roughly 20–55 lbs by color; tube and smaller loop bands often range from about 2 up to 20 lbs; and wide assist/strength bands can list much higher resistances—up to the hundreds of pounds for the largest widths.
You can buy slap bands as single items, small multi-packs (commonly 3- or 5-band fitness sets), or in bulk packs (e.g., large bags of hundreds of office-style rubber bands).
Slap bands support a wide range of uses: glute activation and leg work, full-body strength and toning, arm and core exercises, stretching, Pilates and yoga, mobility and warm-ups, pull-up assistance, and rehabilitation/recovery work.
Some listings explicitly state non-latex construction—for example, certain office-style rubber bands marketed as “made with non-latex rubber.” Woven fabric resistance bands are also described as fabric (elastic) alternatives to latex bands.
Durability varies by construction: woven fabric bands use reinforced stitching for longevity, quality latex bands may be multi-layer or double-dipped for heavy use, and some assist bands specify thickness (for example, listings note durable rubber around 4.5 mm).
Color-coding is commonly used: most sets tie each color to a specific resistance range or band width so users can quickly identify different resistance levels by color.