Cuccio Pro Ultrawear Tips # 4 50pcs Acrylic Nails Material: Acrylic nails are usually made of a combination of liquid monomer and powder polymer, creating a durable and long-lasting material.Size #4: The number in the product name, in this case, Cuccio Pro Ultrawear Tips #4, likely refers to the size or shape of the acrylic nail tips. Different sizes cater to various nail shapes and lengths.Quantity: The 50pcs indicates that the product includes 50 individual acrylic nail tips.Ultrawear Tips: The term Ultrawear suggests that these tips may be designed for extended wear and durability. It could mean that they are resistant to chipping, cracking, or breaking.Professional Grade: Products labeled as Pro often indicate that they are designed for professional use, suggesting a higher quality and potentially more advanced features.