Product Guidance

Get the right Lynk Cuff in four simple steps. This guided tool walks you through measuring your forearm and instantly recommends the correct cuff length and size — ready to order with confidence.

A photo-based measurement guide. Instead of manual measurements, you print a template, mark two reference points on your arm, and take a set of guided photos. macu4 then builds a 3D model from your photos and extracts every measurement automatically. The app walks you through materials, template validation, marking, photography, and a pre-submission checklist before sending your photos in for validation.

A guided tool that helps you measure forearm length, wrist circumference, and the length difference between wrists, then recommends the matching Lumo Cuff size (STD-SML or STD-MED) and the right integrated offset variant (A–E). Includes measurement tips and a downloadable PDF.

A combined photo-based and manual  measurement guide for fitting a Lumo Socket or Spacer. You print and validate a template, mark the elbow crease, take guided photos for macu4 to validate, then choose your socket type and enter two arm measurements (L4 and L5). The calculator applies the correct built-in offset and returns the closest available Lumo spacer size (A–E).

A self-service order request tool. You browse macu4's product lines (Explorer, Lynk, Lumo, plus give-aways), select the specific product and its options — connector, size, arm side, spacer option, and color — and build an order list. You can preview the full product list, save or print it as a PDF, and submit your request directly to macu4.