These black round vinyl rubber end caps offer a comprehensive size range with 12 sizes, including 20pcs of 2mm, 3mm, 4mm, 4.5mm, 5mm, 6mm, and 7mm; 10pcs of 8mm, 9mm, 9.5mm, and 12mm; and 4pcs of 20mm, totaling 184 pieces. Made from high-quality black vinyl rubber, they provide durable protection for bolts, screws, and edges, preventing damage and wear. Their sleek, black round design adds aesthetic appeal to equipment or furniture. Designed for easy installation, they are suitable for both professionals and DIY enthusiasts. These versatile caps are ideal for automotive, furniture, construction, and industrial applications, offering both protection and a polished finish to exposed metal ends.