Description: Scuba diving 31m/101ft reel spool with 4" double ended snap + underwater writing slate with pencil 304 stainless steel finger reel, with nylon 8 strands braided rope, sturdy and durable The scuba spool can be hung on BC or just put in the pocket, is great for cave and wreck diving, also can be used as guide line for other accessories The underwater writing slate is perfect for making notes to yourself or communicating with your underwater Replaceable pencil with floating rubber pencil keeper, so the pencil will not fall ; and the swivel clip can attach to BCD Specification: Scuba Reel Spool: Main Material: 304 Stainless Steel + Nylon Color: Silver + Fluorescent Green Reel Dimensions (Diameter x Height): Approx. 7.5 x 4 cm / 2.95 x 1.57 inch Nylon Rope Length: Approx. 31 m/ 101.71 ft Nylon Rope Diameter: Approx. 2 mm/ 0.08 inch Double Ended Clip Size: Approx. 10 x 2.3 cm / 3.94 x 0.91 inch Writing Slate: Main Material: Silicone Color: White + Black Writing Slate Size: Approx. 15.4 x 12.7 cm / 6 x 5 inch Package Includes: 1 Piece Scuba Diving Finger Reel (Including 31m line and Double ended clip) 1 Piece Underwater Writing Slate with Pencil Note: Due to the differences between different monitors, the picture may not reflect the actual color. There is 2-3% difference according to manual measurement, please check the size carefully before you buy the item.