Check the listing for details. AxeMasters Slotted Brass Nut - made for Rickenbacker Ric 4000 Series Bass Guitar. Color: As Stated, Condition: New. Listed at 18.99 USD. Sparkling Brass Nut for your Ric 4000 Series Bass! Have you ever wondered what metal the Liberty Bell is made of? What material any "real" bell is made of? Usually BRASS. And why is that material used? Because it "rings"! Because its perfect for converting mechanical energy into acoustic energy. That's why many professional guitarists use brass guitar nuts. It has a noticeable improvement on sustain and tone. A huge improvement over the cheap stock plastic nuts supplied with most guitars. Our flat-bottom nut is hand ground and sanded from solid brass and round-slotted for perfect string placement. All hand-made - no machines. Very attractive brushed surface finish. .19" thick, .40" tall, 1.70" long. Please make sure that these values match what you need. Check out some Feedback from buyers of our items: "one word.... AWESOME" "Best items I've purchased ever, items are of the highest quality, 5 stars *****" "Very, very satisfied." "Super Fast Shipping Very Impressive!!! AAA+++++++ Awesome" "just what i needed A+++++++ Thanks!" "As described, good quality, good price, fast shipping. Highly recommended" "Great Communication, fast service, well packed, low shipping, will buy again!" "Great product, Great price and fast delivery." SHIPPED IMMEDIATELY / SATISFACTION GUARANTEED / MADE IN THE USA