Shoreline Marine SL91564 Slip Ring Anchor #7 Anchor Kit. ANCHORING & DOCKING: Get the Shoreline Marine #7 Slip Ring Anchor Kit that has everything you need to safely dock your boat. It should be in every boat owner's kit to safely park your boat, kayak, or canoe. VERSATILE USE: This anchoring kit is well-suited for use in mud, sand, or gravel bottoms. This kit comes with a strong metal chain attachment for extra security. This set is durable enough to withstand rocks and other underwater hazards. DURABLE CONSTRUCTION: Thanks to a slip ring shank, this docking accessory ensures easy retrieval when dealing with stuck anchors. With an excellent weight to power holding ratio, this durable and high-quality anchor kit is a convenient and portable anchor kit. KIT INCLUDES: This compact boating kit includes two 5/16-inch drop forged shackles to latch onto a variety of different surfaces, a 3/8-inch x 50' twisted nylon rope with thimble to connect to the boat, and a strong metal chain attachment for extra security. The #7 slip ring anchor kit comes complete with everything you need for anchoring boats up to 19 ft. The slip ring design provides the holder power of a fluke anchor with the ease of retrieval the slip ring design provides. 50 ft. of 3/8 in. nylon anchor line with thimbles. 4 ft. of 1/4 in. galvanized anchor chains with 2 galvanized 5/16 in. anchor shackles. Complete anchor kit for boats up to 19 ft. Penetrates deep in a variety of bottom conditions.