| Used (Like New) | Red String with Coupling Points and End Studs 1 x 21 | 1 | S$ 0.673 | N/A | The MOC Shop (0) Request a Shipping Quote Minimum Order S$ 1.35 | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | S$ 0.793 | N/A | Brick Masterpiece (929) Request a Shipping Quote Minimum Order S$ 1.69 | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | S$ 0.842 | N/A | Brickshaw (52) Request a Shipping Quote Minimum Order S$ 4.21 | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 2 | S$ 0.849 | N/A | StackIt Bricks (19) Request a Shipping Quote Minimum Order S$ 11.79 | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 6 | S$ 0.892 | S$ 7.77 | Bremer Bricks (231) Shipping S$ 6.87 Minimum Order S$ 5.80 | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | S$ 0.905 | S$ 21.91 | Noosa Brick Paradise (43) Shipping S$ 21.01 | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 11 | S$ 0.96 | S$ 14.99 | Brickslan (91) Shipping S$ 14.03 Minimum Order S$ 7.01 | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 16 | S$ 0.961 | S$ 8.72 | BrickSick OLX / BLIK (64) Shipping S$ 7.76 Minimum Order S$ 3.23 | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | S$ 0.965 | S$ 47.12 | nerdgeek.store (354) Shipping S$ 46.16 | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 2 | S$ 0.975 | S$ 16.88 | BrickStore-Lausitz (177) Shipping S$ 15.91 Minimum Order S$ 5.89 | |
| Used (Good) | Red String with Coupling Points and End Studs 1 x 21 | 1 | S$ 1.02 | N/A | The Brick Junction (144) Request a Shipping Quote | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 3 | S$ 1.03 | N/A | The Database (35) Request a Shipping Quote Minimum Order S$ 2.63 | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 3 | S$ 1.10 | S$ 8.12 | Corens Brick Emporium (193) Shipping S$ 7.01 Minimum Order S$ 1.40 | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 4 | S$ 1.11 | S$ 7.75 | KOPEC KOSTEK (RB-Bricks) (206) Shipping S$ 6.64 Minimum Order S$ 16.61 | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 3 | S$ 1.11 | S$ 15.13 | Jsemin Bricks (18) Shipping S$ 14.01 Minimum Order S$ 1.40 | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 14 | S$ 1.12 | N/A | Parkstad bricks (247) Request a Shipping Quote | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 9 | S$ 1.12 | N/A | Baarlo Bricks (79) Request a Shipping Quote | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | S$ 1.12 | N/A | BricksandMinifiguresUK (0) Request a Shipping Quote | |
| New | Red String with Coupling Points and End Studs 1 x 21 | 1 | S$ 1.13 | S$ 9.55 | BrickTasty (94) Shipping S$ 8.42 Minimum Order S$ 7.01 | |
| Used (Good) | Red String with Coupling Points and End Studs 1 x 21 | 1 | S$ 1.16 | S$ 25.25 | Leftover Bricks & Pieces (18) Shipping S$ 24.08 Minimum Order S$ 7.01 | |