| Basic Foam Arch | $15–$30 | Approximately 30–38 cm long; 15–20 cm wide | High-density foam with a fabric or synthetic-leather cover | Usually fixed; one or two height positions | Usually up to 100 kg | First-time users and limited budgets | Lightweight, inexpensive, portable, and simple to use | Less precise support and usually lower durability than rigid designs |
| Contoured Rigid Arch | $25–$55 | Approximately 35–40 cm long; 18–25 cm wide | ABS plastic or reinforced polymer with padded contact areas | Often fixed or limited to two height settings | Commonly 100–150 kg | Users wanting firmer lumbar support | Stable shape, easy to clean, and suitable for short daily sessions | A rigid profile may feel too intense for sensitive users |
| Multi-Level Adjustable Stretcher | $35–$75 | Approximately 35–42 cm long; 20–27 cm wide | Reinforced plastic, foam padding, and non-slip rubber feet | Typically 3–5 height or curvature levels | Commonly 100–150 kg | Most users seeking adjustable intensity | Offers gradual progression and better fit across different body sizes | More moving parts can increase setup time and wear |
| Acupressure-Style Back Arch | $25–$60 | Approximately 35–42 cm long; 18–25 cm wide | Plastic frame with molded pressure points and padded sections | Usually 3–4 height positions | Commonly 100–130 kg | Users who prefer targeted pressure points | Combines spinal extension with localized pressure along the back | Pressure points may irritate sensitive skin or tender areas |
| Lumbar Traction Device | $45–$100 | Approximately 30–45 cm long; 20–30 cm wide | Plastic or metal frame with foam pads, straps, or inflatable sections | May include adjustable height, angle, strap tension, or air pressure | Commonly 100–150 kg | Users seeking more controlled lumbar traction | Allows a more customized setup and can provide targeted lower-back support | Requires careful adjustment; stop use if pain, numbness, or tingling occurs |
| Foldable Travel Stretcher | $30–$70 | Approximately 30–40 cm long when assembled; folds for storage | Folding polymer or metal frame with foam padding | Usually 2–4 positions | Commonly 90–130 kg | Travelers and users with limited storage space | Compact storage, easy transport, and quick setup | Hinges and locks should be checked regularly for stability |
| Premium Wood or Metal Frame | $60–$120+ | Approximately 35–45 cm long; 20–30 cm wide | Finished wood or steel frame with padded support surfaces | Commonly 3–6 positions | Often 120–180 kg | Frequent users prioritizing construction quality | Strong frame, stable positioning, and potentially longer service life | Heavier, less portable, and more expensive than basic models |