Orlah 3:2-3

Orlah 3:2

If one dyes a thread the length of the distance between the index finger and the middle finger (when extended) using shells of orlah produce, then wove this thread into a garment so that the thread in question is unidentifiable, Rabbi Meir says the garment must be burned. The Sages say that the thread becomes nullified in the ratio of 1-in-200.

Orlah 3:3

If one takes a thread the length of the distance from the index finger to the middle finger from the wool of a firstborn animal and weaves it into a garment, the garment must be burned. If one wove hair from a nazir or from a firstborn donkey into a sack, the sack must be burned. When dealing with sanctified thread, it would render something sanctified in any quantity (even smaller than the distance from the index finger to the middle finger).