Retenser Pro™ Adjustable String‑Tension

Why players choose Retenser Pro

• Dial in fresh‑string feel in seconds – twist the supplied key to add up to +3 kg of tension courtside; no re‑string required. 
• Three cylinder sets (Soft 0–1 kg │ Medium 0–2 kg │ Hard 0–3 kg) let you match power or control to surface, weather, or opponent. 
• Universal fit, nearly any modern frame – two flexible base plates adapt to flat or curved bridges; order the 3‑loop or 4‑loop version to match your racket. 
• Feather‑light & balance‑neutral – adds ≈ 5 g (< 2 % of a 300 g frame) and sits mid‑bridge, so swing‑weight barely moves.
• ITF match‑legal & Red Dot Award winner – patented CCT technology recognised as 2021’s “Most Innovative Sport Product.” 
• Built to last – aerospace‑grade polymer + stainless hardware; re‑use across multiple string jobs and future rackets. 

What’s in the box

* 3‑cylinder = 3 bridge loops | 2‑cylinder = 4 bridge loops 

Technical Specs

How Retenser Pro lifts your game

1. Restore lost tension – strings lose up to 20 % tension in the first week; one twist brings them back to spec.
2. Adapt instantly – tighten for a fast hard‑court slug‑fest; loosen for heavier clay or when energy dips late in the match. 
3. Save money & downtime – extend string life and cut re‑string trips in half.
4. Protect your arm – consistent response means cleaner contact and less grip‑pressure fatigue. 

Installation & Use

• Install once during your next string job (video QR code included).
• Start in “‑” position, giving you two further clicks (to ⚪ middle and ➕ plus) before your next restring. 
• Always set all cylinders to the same position for even bed tension.