The Haisstronica 520Pc. Marine Grade Heat Shrink Wire Connectors-Electrical Product Features GOOD QUALITY MARINE GRADE WIRE TERMINATION:The Haisstronica heat shrink connectors kit includes ring,fork, spade,and heat shrink butt connectors.The right quality wire connectors,for the right job,is always worth expense. 99.9% PURE COPPER TINNED:Effectively prevent copper layer rust and then cause bad contact,anti oxidation prevent electrical sparks.Strong conductive. EXTREMELY RELIABLE CRIMPING:The 3:1 heat shrink connector with adhesive lined will exude hot melt adhesive after being evenly heate,quickly shrink and adhesion to the insulation of the wire.Create a complete environmental seal.Waterproof,Wear-resistant. SAFE WIRING PROJECTS:The Brazed-seam terminal connector, ensures strong sealing crimps.Salt-resistance,and corrosion resistance,provide reliable wiring. BUYER CONFIDENCE:We stand behind the quality of our products. If for any reason you are not satisfied with your purchase,please contact us.We offer a 30-day money-back guarantee,and a 12-month replacement warranty giving customers a 100% Satisfaction Guarantee for risk-free purchases! Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!