DescriptionThis product is made of high-quality plastic material, which is durable.This kind of plug expands the overtone connecting rod to protect thesleeve, and prevents the connecting rod from being squeezed and deformedwhen the saxophone is disassembled and assembled.Features-Color: Black -Material: Plastic -Size: 4.00X2.20X2.20cm/1.57X0.86X0.86in -Made of selected plastic material, sturdy and durable, can serve you for many years. -The surface is smooth, corrosion-resistant, non-fading, safe to use, and can be used with confidence. -This saxophone plug has fine workmanship, sturdiness and durability, and is effective in preventing dust and dirt. -Unique design, premium material, and exquisite craftsmanship ensure its popularity and practicality. -This product is widely used in alto saxophone, with strong practicability and fine details.