The blade of the knife is painted with metallic paints and adorned with a pattern of translucent wavy lines resembling smoke. The color scheme of the skin includes various shades of blue, brown and black creating gradient transitions. The handle remains unpainted.


The pattern index affects the ratio of colors as well as the location of blue, brown and black areas. Pattern variations with a predominance of blue on the play side of the blade are titled “BTA Blue”. Knives with only blue color on the blade resemble Flip Knife | Doppler Sapphire and are titled Max Blue.

This guide is for the Play Side





The pattern index affects the ratio of colors as well as the location of blue, dark blue and black areas.

I have selected the best Max Blue patterns. Rare pattern is the maximum amount of blue at the tip of the knife.

34 41 87 93 105 205 256 326 341 348 380 403 422 449 468 494 517 520 521 527 550 571 575 576 577 583 601 636 648 651 664 668 714 742 763 807 834 848 892 897 910 911 925 943 944 961 975

11 29 46 84 107 136 137 141 147 150 201 224 236 278 308 345 375 395 396 399 401 428 455 465 486 597 599 639 657 690 703 712 745 747 751 754 781 789 793 800 824 825 827 838 840 849 856 872 914 936 956 968 981

21 30 43 64 73 80 89 130 145 168 172 173 181 211 223 229 249 260 282 283 295 313 314 358 377 381 430 435 447 458 462 466 482 488 508 511 514 525 536 566 568 572 608 640 665 677 686 726 749 759 798 813 881 891 917 940

6 12 22 33 37 47 76 94 103 109 154 155 161 191 210 212 227 276 285 293 302 324 336 361 392 416424 429 433 440 442 446 481 487 513 538 564 586 587 612 687 698 719 752 762 782 790 815 860 863 875 878 887 898 915 953 960 979

8 23 79 104 117 157 176 179 187 277 289 376 389 528 645 658 740 757 758 769 774 808 821 835 851 866 886 895 933 955 974 984 990 993 995

Other BTA Patterns - these patterns come after Tier 4 and are also Max Blue patterns.

Float Value of the skin ranges from 0.00 to 0.08, which makes Flip Knife | Doppler Phase 4 available only in Factory New and Minimal Wear condition. At levels of wear close to the maximum, the knife has noticeable abrasions on the corner of the blade close to the handle.

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