Abstract: A package reinforcement and support structure for use in dispensing a winding of flexible material such as wire, cable, rope and the like comprises a first tubular member, a second tubular member telescoped over the first tubular member, and co-operative interlocking elements on the tubular members. The interlocking elements include a pair of first slots formed in a diametrically opposed relationship on the body of the telescoping tubular member and a pair of tang members formed in diametrically opposed relationship on the body of the first tubular member. The tang members are engageable with elements of the first slots for establishing a separable mechanical connection of the first and second tubular members. The cooperative interlocking elements of the support structure also include container or box reinforcements.