Best Friends Forever new series from Si Novelties feminine line is like a lifelong friend. These new products will be something women can not be without. Fun. dependable and nearby when needed. A sense of sexy sophistication is something you can expect from BFF by Si BFF Petite Naturally Yours Strap On Dildo Flesh 5 inches attachment for BFF harness. not included. Sold separately. Made using PVC. Dildo is compatible with universal strap on harnesses equipped with a 1.5 inches o-ring. Please note dildo attachment for strap on harness.