Gold Tone Mini November - Yellow Birthday Crystal Gold Tone Heart French Earrings. Birthday Crystal Heart is approximately 0.24 x 0.25 x 0.11 inches (HxWxD) not including loop. Back is smooth and rounded. Stainless Steel 11mm fishhook. Comes with small rubber earnuts. Also available for non-pierced ears. PLEASE NOTE: Our products are lead safe, but are not intended for children 14 years and younger.