A cartridge for bulk stocking of a dispenser having a cartridge holding area for receiving the cartridge and that has a top, a bottom, two sides, a back, an exit port in the bottom of the cartridge holding area at the back of the cartridge holding area, and a resting surface with a front edge at a front of the bottom of the cartridge holding area; the cartridge comprising: a) a top, a bottom, a back, and two sides (15, 16), enclosing an internal volume for containing at least one row of rolling products (1, 2, 3, 4) having a rolling product radius (r); b) a retaining flap formed in the bottom of the cartridge, comprising a front edge, a back edge and two sides; the back edge of the retaining flap forming a rearmost portion of the bottom of the cartridge adjacent to the back of the cartridge, the front edge and the back edge of the retaining flap being separated by a distance at least equal to the rolling product radius (r) and less than twice the rolling product radius (r); the retaining flap being separable from the cartridge at the back edge and along the two sides; and c) a priming flap formed in the bottom of the cartridge, having a back edge coupled to the front edge of the retaining flap by a fold score, a front edge, and two sides; the front edge of the priming flap and two sides of the priming flap being separable from the cartridge; the front edge of the priming flap and the back of the cartridge being separated by a distance of at least as large as twice the rolling product radius (r), such that when the priming flap and the retaining flap are separated from the cartridge, an opening is defined in the bottom of the cartridge at least equal to twice the rolling product radius (r), such that rolling products(1, 2, 3, 4) contained in the cartridge may exit the cartridge through the opening; whereby, the priming flap can be separated from the bottom of the cartridge and the cartridge placed in the cartridge holding area of the dispenser with the retaining flap on the resting surface of the cartridge holding area and the priming flap secured to the front edge of the resting surface, the cartridge can then be pushed into the cartridge holding area toward the back of the cartridge holding area to cause the retaining flap to separate from the bottom of the cartridge, to permit rolling products (1, 2, 3, 4) contained in the cartridge to exit the cartridge through the exit port of the cartridge holding area. a) a top, a bottom, a back, and two sides (15, 16), enclosing an internal volume for containing at least one row of rolling products (1, 2, 3, 4) having a rolling product radius (r); b) a retaining flap formed in the bottom of the cartridge, comprising a front edge, a back edge and two sides; the back edge of the retaining flap forming a rearmost portion of the bottom of the cartridge adjacent to the back of the cartridge, the front edge and the back edge of the retaining flap being separated by a distance at least equal to the rolling product radius (r) and less than twice the rolling product radius (r); the retaining flap being separable from the cartridge at the back edge and along the two sides; and c) a priming flap formed in the bottom of the cartridge, having a back edge coupled to the front edge of the retaining flap by a fold score, a front edge, and two sides; the front edge of the priming flap and two sides of the priming flap being separable from the cartridge; the front edge of the priming flap and the back of the cartridge being separated by a distance of at least as large as twice the rolling product radius (r), such that when the priming flap and the retaining flap are separated from the cartridge, an opening is defined in the bottom of the cartridge at least equal to twice the rolling product radius (r), such that rolling products(1, 2, 3, 4) contained in the cartridge may exit the cartridge through the opening;