The product is a 15-pack of white tapered shaped solid rubber stoppers from Uxcell, designed for lab tubes. The stoppers are made of rubber and measure 17x23x26mm in size. The package dimensions are 4.45x3.54x1.5 inches, and the weight is 0.33 pounds. These stoppers are essential for sealing and stopping lab tubes securely, making them a reliable choice for medical and laboratory applications.