These are my first biewer yorkies. Their mom is a black and tan traditional yorkie and the daddy is Romeo, a biewer!! The litter is mixed. There is a biewer female she is 600 , a biewer male, he is 500. Black and tan females are 500 and males are 400. All will be under 5 lbs. There are two that will be more like 3.5 to 4 lbs.