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We are selling from Japan.
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✅ [Rubber for harpoons that combines ease of pulling, initial speed, and power] The important points when choosing rubber for harpoons are ease of pulling, initial speed, and power. The characteristics of rubber are "stretchability and flexibility." Ultimate Dive's sling rubber uses 100% natural rubber NATURE. Since it is a high quality and highly purified natural rubber, it has excellent elongation and stickiness, and the initial velocity and power when releasing a harpoon are high. Because it is highly elastic, it moves towards the prey fish while maintaining its power. Regarding storage methods, avoid direct sunlight and places with high temperature and humidity. Please store in a cool and dark place. This may cause deterioration such as cracking.
✅ [Rubber length/choice] Example) If you are using two 90cm shaft poles made by Ultimate Dive: It is best if you can hold the 72cm type rubber at a point where it stretches 1.5 to 2 times the normal length. In the case of this specification, it will be most effective if you grasp the shaft part approximately 5cm to 10cm from the end pole/middle pole connection fittings. *Since it is a powerful rubber, I think grip strength will vary from person to person. In that case, we recommend using rubber grip diving gloves and doing it at your best speed. Another size 84cm rubber is good for connecting Ultiamte Dive harpoon sets of 3m or more.
✅ [Product details and specifications] Rubber diameter: 9.5 mm, total length: 72 cm (rubber part only), mesh cord, 100% natural rubber (NATURE) Seawater salt and metals are very incompatible. Thoroughly drain the seawater from the harpoon tip, shaft pole, sling rubber, and other accessories, wash them with fresh water, and then air dry them. Leaving the product with seawater attached or in it may cause rust on the metal parts.
✅ [About firing the harpoon] If the distance from where you grip the rubber to the tip of the harpoon tip is long, it will be difficult to maneuver. In that case, make the sling rubber a little longer. Conversely, if the tip of the harpoon is short, you will have to get close to the fish and release it. In this case, it will be easier to maneuver by making adjustments in areas close to close combat, such as hole punching.
✅ [Ultimate dive] Founded in 2016, this is a brand specializing in spear fishing. Developed in collaboration with a spearfisher who is familiar with Japanese fishing situations and a long-established American manufacturer!
✅ [High quality US quality] Harpoons, poles, harpoon tips, etc. that are suitable for Japanese fish are made under strict quality control. We have researched hand harpoons, waistcoat harpoons, rubber bands, etc., and are loved by spearfishers around the world.
・Rubber diameter: 9.5mm ・Total length: 72cm Made of high quality rubber that stretches well and does not easily lose power. Recommended for those who are making their own hand harpoons.