**Revised Description:** Size: Cork measures approximately 8.1 x 1.1 x 0.2 cm (3.2 x 0.4 x 0.08 in). Pads include diameters of 1.72 cm (3 pieces), 1.5 cm (1 piece), 1.2 cm (2 pieces), and 1 cm (11 pieces). Contents: 10 cork pieces and 17 pads (27 total items), suitable for Bb instrument maintenance. Compatibility: Fits most Bb instruments. Check sizing before purchase. Material: Cork pieces are durable with good elasticity; pads are made of sheep casing. Features: Provides strong compression, sealing, noise resistance, and durability. Specifications: - Colors: Wooden and white - Cork size: 8.1 x 1.1 x 0.2 cm - Pad sizes: 1.72 cm (3), 1.5 cm (1), 1.2 cm (2), 1 cm (11) - Net weight: 10 g - Includes: 10 cork pieces, 17 pads, 1 velvet bag