EFEL Plus 3/4-4/4 Low High or Low? The Plus builds on the Ergo with a 20 mm extension on one side, so it sits more securely on the shoulder. Our model for professional players.Key Features: Asymmetrical Stability: One side extended by 20mm to provide enhanced leverage and a secure fit on the shoulder. Versatile Height Range: Fully adjustable from 30mm to 70mm — the standard choice for an average build. Laser-Engraved Traction: Precision-cut grooves ensure the support stays exactly where you place it. Anatomical Customization: Soft steel legs allow for infinite micro-adjustments to your posture, and hold the shape you bend into them. Weightless Performance: At only 42g, it allows your instrument to vibrate freely without the bulk of traditional rests. Audience: Orchestral and professional players. Artisan Quality: Handcrafted with precision in the Czech Republic. Specifications: Instrument: Violin (3/4 - 4/4) Weight: 42 g ±2 g (approx. 1.48 oz). Each rest is hand-made, and the foam thickness varies slightly from piece to piece. Materials: Drawn spring steel frame, soft steel legs, premium EVA foam, non-slip rubber grip cylinders.