ISPO Award Winner 2025: EGGspander expands functional strength training with a compact, two-handed concept

In a market saturated with hand and grip trainers that offer marginal effects, the EGGspander introduces an entirely new functional concept. The device is designed to be used with both hands simultaneously, enabling it to activate up to 85% of upper-body musculature and deliver a far more comprehensive training stimulus than conventional single-hand grip tools. Awarded an ISPO Award 2025, the product aims to merge simplicity, mobility and high effectiveness. 

The brand considers the recognition a major milestone. “The award improves the credibility of the EGGspander. Our brand gains a lot of visibility for potential customers. The sincerity of our attempt to create added value for users is proven,” says Sonja Stamer, Founder. That value is rooted in a device that focuses on strength, focus, motor control and stress regulation—without requiring a gym environment or large equipment footprint. As a training tool, the EGGspander positions itself as both versatile and inclusive, targeting users with limited time, people on the move, office workers who need activation, and anyone seeking accessible fitness. 

At the core of the product is a patented use concept that sets it apart from any conventional grip trainer. Instead of isolated hand and forearm training, the EGGspander engages the upper body holistically through bilateral resistance work. Stainless-steel springs provide adjustable resistance, allowing users to tailor intensity to individual strength levels, while the natural ergonomic shape adapts to both palms. 

The design also focuses on tactile quality. The outer material is a silicone compound, selected for its grip feel, FDA-compliant and food-safe properties, and allergy-friendly characteristics. Reinforced silicone-stainless-steel composites ensure longevity, making the device robust enough for long-term use in a variety of settings—from physiotherapy to fitness studios to at-home activation. “Every retailer sells and every customer uses the established grip trainer, although the effects of it are limited. Our product enables retailers to offer a new device to customers which keeps its promise when it comes to training results,” Stamer adds. 

This dual-hand movement pattern expands training effects substantially, activating chest, shoulders, back, arms and core—an approach validated by functional strength experts such as Romeo Jackson, 4× Mr. Holland Bodybuilding Champion and part of the development team. 

One of the strongest appeals of the EGGspander is its high accessibility. It is designed for users across all age groups and ability levels—from younger athletes to older adults, from healthy individuals to those recovering strength through physiotherapy routines. The device fits in any bag, weighs little, and can be used at home, at the office, during travel, or as a quick activation tool between tasks. 

This ease of use aligns with broader shifts in consumer behavior: a rising preference for micro-workouts, stress-relief tools and mobile equipment that supports hybrid lifestyles. Retailers benefit from the simple explanation and broad applicability: a single SKU that serves strength training, concentration work, stress reduction and functional mobility. The brand supports this accessibility with training and instructional content via a dedicated YouTube channel, helping users integrate the tool into regular routines without the need for professional supervision. 

Beyond functional performance, the EGGspander incorporates durable materials that support long-term use. The stainless-steel components and reinforced silicone surfaces are designed for frequent repetition without material fatigue. Local production in Germany minimizes logistical impact and ensures consistent quality control—an important factor for retailers seeking reliable, straightforward products without complex after-sales requirements. 

The ISPO Award 2025 highlights the product’s clear positioning: a compact, portable tool that brings a new dimension to strength and coordination training. With its patented bilateral mechanism, inclusive target group and long-lasting construction, the EGGspander offers retailers a differentiating addition to their fitness assortment and gives consumers a versatile tool that supports health and performance in everyday life. 

• Patented two-hand training concept 
• Inclusive and accessible for all users 
• Compact, mobile and highly versatile 
• Durable, ergonomic and resistance-adjustable