If your looking for most mehudar/observant pair of techeles, then here you have found them.
Made in Jerusalem, Israel by hand.
"These strings have been dyed with authentic techeles obtained from Murex trunculus snails. Dyeing and spinning have been done according to the strictest requirements and expressly for the mitzvah of tzitzis. (Extraction of the dye and the dyeing itself are natural processes done by hand. As a result there may be slight variations in shade.)