The Schuhspanner Holz cedar shoe trees deliver premium footbed preservation and odor control with an adjustable spring-loaded design. Specs: - Constructed from unfinished natural cedar wood for moisture absorption and fresh scent - Adjustable spring mechanism ensures a custom fit for various shoe sizes - Smooth, splinter-free surface protects delicate shoe linings - Integrated metal spring tension system maintains consistent pressure - Ergonomic heel shape mimics the natural foot curve - No lacquer or sealant applied, allowing the wood to breathe naturally - Lightweight design at approximately 200 grams per pair - Suitable for leather, suede, and synthetic upper materials This Schuhspanner Holz model uses a split-toe construction that expands gently against the shoe's interior to prevent creasing. The cedar wood's natural antibacterial properties keep sneakers and dress shoes fresher between wears, while the adjustable spring mechanism accommodates sizes 39-46 EU. Use these tree forms overnight after each wear to maintain the shoe's original shape and extend its lifespan.