Kalastus Lure Production Studio. Product Name: LUONTO37S Sinking (Studio Serial Number: 02351-70) Size: 37 mm (body) Weight: 2.0 g Type: Sinking (Swim state of body only / when no hook) Sinking Color: Red Mask Yellow/Orange Material: Balsa Sold as body only. Swim tested and hand tuned. Recommended hook size. Recommended Hooks: Owner Cultiva ST-26 #14, S-55m #10 Action (in my opinion): Tight wobbling Each of our studio's products is handmade. Please understand that there may be some variations and imperfections. Coated entirely with cellulose cement. The finish is done with a cellulose cement spray process, please understand. All of our studio's products undergo swim tests and eye adjustments in mountain streams. Adjust the eye if the swimming is uneven. Balsa products may be damaged by strong impacts. As these are handmade products, there may be variations in precision and performance. We cannot accept claims based on the above. Thank you for viewing. kalastus lure production studio kalastus (Finnish for fishing)