| Used (Good) | Red String with Coupling Points and End Studs 1 x 21 | 1 | US $0.426 | US $5.24 | SkaraborgJohan (46) Shipping US $4.82 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | US $0.629 | US $13.20 | AbsoluteBrick (177) Shipping US $12.57 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | US $0.647 | N/A | Brickshaw (235) Request a Shipping Quote Minimum Order US $3.23 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | US $0.656 | US $5.47 | SkaraborgJohan (46) Shipping US $4.82 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 6 | US $0.686 | US $5.27 | Bremer Bricks (196) Shipping US $4.58 Minimum Order US $4.45 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | US $0.70 | US $6.65 | First Order Brick Shop (6) Shipping ~US $5.95 Minimum Order US $4.00 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 2 | US $0.711 | US $5.21 | Flying Box (387) Shipping US $4.50 Minimum Order US $5.00 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 11 | US $0.718 | US $11.50 | Brickslan (84) Shipping US $10.78 Minimum Order US $5.39 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 3 | US $0.739 | US $5.69 | Pop's Block Shop (1135) Shipping ~US $4.95 Minimum Order US $0.94 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 21 | US $0.743 | US $6.75 | BrickSick OLX / BLIK (27) Shipping US $6.00 Minimum Order US $2.50 |
| Used (Good) | Red String with Coupling Points and End Studs 1 x 21 | 1 | US $0.80 | US $5.40 | Penguins and plastic (165) Shipping US $4.60 Minimum Order US $7.50 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 12 | US $0.802 | US $7.97 | BRICK FOR MOC (52) Shipping US $7.17 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | US $0.808 | US $6.80 | Brick Counters Bazaar (166) Shipping US $5.99 Minimum Order US $5.00 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | US $0.812 | US $6.80 | Studbee (635) Shipping US $5.99 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | US $0.816 | US $17.37 | Noosa Brick Paradise (22) Shipping US $16.55 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 2 | US $0.819 | US $6.31 | Danny-R Sale (160) Shipping ~US $5.49 Minimum Order US $2.00 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | US $0.819 | US $5.81 | Veteran Brickster (591) Shipping ~US $4.99 |
| Used (Good) | Red String with Coupling Points and End Studs 1 x 21 | 1 | US $0.842 | N/A | bartbart's (276) Request a Shipping Quote Minimum Order US $3.66 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 6 | US $0.853 | US $33.19 | BricksInClicks (2) Shipping US $32.34 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 3 | US $0.853 | US $5.70 | Coren’s Brick Emporium (169) Shipping US $4.85 Minimum Order US $1.08 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 8 | US $0.854 | US $9.03 | 1 Brick.Bazaar (1102) Shipping US $8.17 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 8 | US $0.862 | US $6.03 | KOPEC KOSTEK (RB-Bricks) (153) Shipping US $5.17 Minimum Order US $12.92 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 14 | US $0.862 | N/A | Baarlo Bricks (41) Request a Shipping Quote |
| New | Red String with Coupling Points and End Studs 1 x 21 | 14 | US $0.862 | N/A | Parkstad bricks (209) Request a Shipping Quote |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | US $0.862 | N/A | LeVin's World (381) Request a Shipping Quote Minimum Order US $1.08 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 3 | US $0.867 | US $10.03 | LoTi Toys (52) Shipping US $9.16 Minimum Order US $5.39 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 11 | US $0.88 | US $5.51 | Vintage Brickworks (372) Shipping US $4.63 Minimum Order US $4.63 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 3 | US $0.88 | N/A | NI Bricks (266) Request a Shipping Quote |
| New | Red String with Coupling Points and End Studs 1 x 21 | 10 | US $0.889 | US $9.46 | Peup-Peup Bricks (78) Shipping US $8.57 Minimum Order US $5.39 |
| New | Red String with Coupling Points and End Studs 1 x 21 | 11 | US $0.894 | N/A | The Little Brick Shed (2) Request a Shipping Quote |